Dispenser



M. J. STUFF Sept. 21, 1937.

DISPENSER Filed April 9. 1955 Patented Sept. 21, 1937 uNirn smv ATENT oFFicE 2 Claims.

This invention relates to improvements in dispensing vessels for liquids and includes means associated therewith for dispensing said liquid. It relates more particularlyto improvements in devices for dispensing liquid soap and the like.

Among the objects of the invention is to provide an improved dispensing vessel which may be quickly attached by suction cups to a blank wall, such as a toilet room wall or the side of a bath l0 tub, without marking the wall and which may be readily removed therefrom. A further object is to provide a novel liquid discharge or dispensing means which will insure against leaking or dripping.

Other objects are to provide a device for the pressure discharge of liquid wherein the volume of liquid discharged may be easily controlled, characterized by a minimum number of parts 0 and which is simple in operation and durable in use.

The foregoing and other advantages of the present invention will be apparent from reference to the following detailed explanation, taken in conjunction with the accompanying drawing, wherein has been selected for exemplication a preferred embodiment of the principles of the invention.

In the drawing:

Figure l, is a plan view of the vessel attached to 30 a wall for use;

Figure 2 is a section on the line 2-2 of Figure 1, showing the vessel and discharging mechanism in cross-section;

Figure 3 is a longitudinal section of the dis- 35 charge means showing the piston partially thrust forward as when the device is operated; and

Figure 4 is a perspective of the chamber adapted to be positioned within the vessel.

Referring more in detail to the drawing, vessel 40 I0 having a top I2 represents any type of vessel suitable for devices of this character and is provided with any convenient number of laterally eX- tending arms I4 carrying suction cups or the like I6 for attaching the vessel to a blank surface.

Disposed within the bottom of the vessel and submerged in the liquid is a measuring and compression chamber l8 of any suitable size, having a top 20 to permit access to the interior thereof and provided with a preferably integrally depending exteriorly and interiorly threaded tube 22 which is projected through an opening in the bottom of the vessel I0. Liquid inlet ports are provided for the chamber at I9, and bleeder ports for liquid trapped in the chamber are provided at 2|. Chamber I8 is secured in position by means of nut 24 and washer 26 which engage the exteriorly threaded portion of tube 22.

Mounted within chamber I8 and adapted to reciprocate therein is a cup-shaped piston 28 having sides 3U which terminate below ports I9 t0 5 permit the fre-e flow of liquid into the chamber when the piston is in normal position. The piston stein 32 is bored longitudinally as at 34, and the bore extends through the piston to communicate with the interior of the chamber I8, thus providing a storage for liquid to be discharged and a discharge passage for liquid forced out of the chamber upon forward thrust of the piston therein. Piston 28 is held by suitable means, such as coil spring 36, normally seated at the base of the chamber. Packing means for piston rod 32 is provided by nut 33, which engages the interiorly threaded portion of tube 22, and packing 40. The free end of piston stem 32 may be shaped as a downwardly projecting spout 42, and disposed in the bore 39 prior to the spout is a check valve 44 supported by a plug or button 46. Valve 44 is normally seated by spring 48 against shoulders 50 of the piston stem to close passage 34.

The operation of the device described is as follows: The vessel, containing liquid to a level above inlet ports I9 of chamber IB, is attached by means of the suction cups to any desired sur-- face, such as a toilet room wall or the side of a bath tub. Chamber I8 and passage 34 will be 30 filled with liquid which has flowed thereto from the vessel through ports I9. Flow or leakage of i the liquid beyond points 5I! of the passage 34 will be prevented, when the device is not in operation, by check valve 44.

To discharge liquid from the device, the operator has merely to push upwardly upon button 46, whereupon piston 28 will be forwardly thrust into chamber I8, closing the inlet ports I9 thereof, and the compression of the liquid in cham- 40 ber I8 and passage 34 will open check valve 44 to permit discharge of the liquid through spout 42 into the hand of the operator. It will be apparent that any desired portion of the liquid 45 stored in chamber I8 and passage 34 may be discharged by limiting the pressure upon button 46 since release or reduction of pressure upon the button will cease compression of the liquid and cause check valve 44 to seat and close the passage. 50

Spring 36 forces piston 28 to the base of chamber I3 when pressure upon button 46 is released, and, to facillitate complete return of the piston, bleeder ports ZI permit escape intothe vessel of liquid which has entered through ports I9 when the piston has risen thereabove and become entrapped in the base of the chamber.

The side walls 30 of the piston, when seated, terminate below inlet ports I9 and permit fresh flow of liquid into the passage 34 and chamber I8 above the piston to await discharge. The cupshaped or concave surfaced piston interferes but little with the capacity of the chamber and facilitates low of liquid from the chamber into the bore or passage.

It is understood that the device herein described in detail is exemplary onlyof many modied structures which may embody the concept of the invention as defined in the following claims.

I claim:

1. A liquid dispensing devicecomprising, a vessel for holding liquid and having a downwardly sloping bottom, a compression chamber disposed within the vessel at the bottom thereof and adapted to be normally submerged in the liquid, said chamber having a liquid inlet port and a separate bleeder port, a piston mounted to reciprocate within said chamber, an elongated hol-l low stern depending from said piston and communicating with the chamber, said chamber and stem being normally iilled with liquid to be discharged, an olf-set discharge nozzle for the stem, and an operating thrust button disposed at the base of the stem and supporting a check valve in the stem adjacent the off-set nozzle, said check valve adapted to be unseated by pressure of liquid in the stem to permit liquid flow to the off-set nozzle when manual pressure is exerted upon the button to thrust the piston upwardly into the chamber.

2. A liquid dispensing device comprising, a vessel for holding liquid and having a downwardly sloping bottom, suction means carried by the vessel whereby it may be mounted upon an upright wall, a compression chamber disposed Within the vessel at the bottom thereof and adapted to be normally submerged in the liquid, said chamber having a liquid inlet port and a separate bleeder port, a piston mounted to reciprocate within said chamber, an elongated hollow stem of reduced cross-section with respect to the piston depending from said piston and communicating with the chamber, said chamber and stem being 

